Extracts of Leaves from the Amazonia Were Efficient Scavengers of ROS and RNS.

L. is an edible plant widespread in Amazonian cuisine and its leaves have high levels of promising phenolic compounds for the production of extracts to be used as natural antioxidant additives. In this study, the in vitro scavenging capacity of three freeze-dried extracts of leaves, obtained by ultrasound-assisted extraction using green solvents [water (HO), ethanol (EtOH), and ethanol/water (EtOH/HO)], was investigated against the most common reactive oxygen species (ROS) and reactive nitrogen species (RNS) generated in both physiological and food systems.

Scavenging Capacity of Extracts of Leaves from the Amazonia against ROS and RNS of Physiological and Food Relevance.

, a medicinal plant found in the Amazon rainforest, is a promising source of bioactive compounds which can be used to inhibit oxidative damage in both food and biological systems. In this study, the in vitro scavenging capacity of characterized extracts of leaves, obtained with green solvents of different polarities [water, ethanol, and ethanol/water (1:1, /)] through ultrasound-assisted extraction, was investigated against reactive oxygen (ROS) and nitrogen (RNS) species, namely superoxide anion radicals (O), hydrogen peroxide (HO), hypochlorous acid (HOCl), and peroxynitrite anion (ONOO). The extract obtained with ethanol-water presented about three times more phenolic compound contents (11.

Antrocaryon amazonicum: An unexploited Amazonian fruit with high potential of scavenging reactive oxygen and nitrogen species.

Antrocaryon amazonicum fruits are unexploited sources of bioactive compounds found in the Amazonia region of Brazil. In this study, for the first time, the carotenoid and phenolic compound profiles of the pulp and peel of A. amazonicum fruits, from two varieties at two harvest periods, were determined by LC-MS.